Research Article

Antioxidant, Antibacterial, and Cytotoxic Activities of the Ethanolic Origanum vulgare Extract and Its Major Constituents

Table 2

Minimum Inhibitory Concentrations (MIC) of bacterial strains.

Bacterial strainsSourceEthanolic oregano extract (μg/mL)

Pseudomonas aeruginosa
 25619ATCC25
 Mucoid clinical isolate 1Cystic fibrosis isolate25
 Mucoid clinical isolate 2Cystic fibrosis isolate25
 Mucoid clinical isolate 3Cystic fibrosis isolate25
 Mucoid clinical isolate 4Cystic fibrosis isolate25
 Mucoid clinical isolate 5Cystic fibrosis isolate12.5
 Nonmucoid clinical isolate 1Cystic fibrosis isolate6.3
 Nonmucoid clinical isolate 2Cystic fibrosis isolate6.3
 Nonmucoid clinical isolate 3Cystic fibrosis isolate25
 Nonmucoid clinical isolate 4Cystic fibrosis isolate12.5
Bordetella bronchiseptica
 10580ATCC12.5
 4617ATCC12.5
Escherichia coli
 25922ATCC25
 700973ATCC12.5
Burkholderia cenocepacia
 25608ATCC25
 Clinical isolate 1Cystic fibrosis isolate12.5
 Clinical isolate 2Cystic fibrosis isolate6.3
 Clinical isolate 3Cystic fibrosis isolate12.5
 Clinical isolate 4Cystic fibrosis isolate12.5
Acinetobacter lwoffii 17925ATCC12.5
Acinetobacter baumannii 19606ATCC12.5
Moraxella catarrhalis 8176ATCC12.5
Bacillus subtilis 6633ATCC6.3
Staphylococcus aureus
 29213ATCC25
 Clinical isolate 1Cystic fibrosis isolate12.5
 Clinical isolate 2Cystic fibrosis isolate25